Whenever a device discovery is scheduled/run, OpManager displays a discovery progress notification.
The discovery progress notification is a pop-up that provides a detailed summary of the progress of the device discovery.
Once done, you can choose which devices to approve and which ones to ignore. Only the approved devices will then be added into OpManager. You can approve/ignore individual devices, or also select multiple devices and do it at once.
It shows the list of devices that fall under the specified range and also the status of their discovery.